type ucl_variable_handler = extern "C" fn(*const c_uchar, size_t, *mut *mut c_uchar, *mut size_t, *mut bool, *mut c_void) -> bool;
Prefix searches with a type followed by a colon (e.g.
fn:) to restrict the search to a given type.
Accepted types are: fn, mod,
struct, enum,
trait, typedef (or
tdef).
Search functions by type signature (e.g.
vec -> usize)